WasActiveInCurrentEpoch returns true if the node was active in current epoch.

WasEligibleInCurrentEpoch returns true if the validator was eligible for consensus in current epoch.

WasJailedEligibleInCurrentEpoch returns true if the validator was jailed in the epoch but also active/eligible due to not enough nodes in shard.

WasLeavingEligibleInCurrentEpoch returns true if the validator was eligible in the epoch but has done an unstake.